DSMB inflate in cold water - purging

I> You don't have crack the bottle so hard that all the gas dumps into the
I> bag. In fact, it's often best to put a small controlled amount into the
I> bag first. This causes it to stand up so that you can make sure it's
I> free and ready to go. Then you can take the reel and let go of the bag
I> without it taking off. Once happy the bottle can be opened a little
I> more with one hand and left to fly. Leaving the bottle open ensures the
I> bag is totally full at the surface.

I> Sadly I don't see how this is harder than blowing it yourself,

What you describe sounds like a faff to me and the few times I tried it it
felt like a faff. I guess I must have done close to a thousand delayed
deployments using the exhaust and I like to think my technique is pretty
slick these days. Maybe if my manual technique was not up to scratch or I
had tried 1000 bottle deployments I might think differently. ATEOD for me
the DSMBi provided no significant benefits and a few drawbacks.

I> but everyone shoud dive how they see fit.

Something we agree on.

I> With CCR your options are more limited.

If you don't have a choice, you don't have a choice!

Regards
MattS

"David Walker" <wbsdavenews@hotmail.com> wrote in
news:bujiuk$44j$1@wisteria.csv.warwick.ac.uk:

>> Any comments? Will an air gun work well, or are there better
>> options?
> And
>> I can't afford a self-inflating DSMB at the minute so thats not an
>> option.
>
> Thanks for the replies everyone.
> Basically, from what i've read, you're saying keep warm so that it
> doesn't become a problem in the first place, if I can't do that then
> get a self-inflating DSMB, or try using exhaust bubbles to fill it.
>
> The getting cold is obviously a problem, although I have to say I was
> working on that as a separate problem / solution. I'm currently using
> some 3mm kevlar gloves, which frankly are rubbish! I thought about
> getting 5mm, but then that restricts movement a bit, and then I
> thought try some titanium 3mm ones. Not sure about that yet.
> I was also thinking about dry gloves, but i'm not 100% convinced.
> Everyone I know who has them (with the connecting rings) has had
> problems with the plastic ring getting cracked, just seems not to be
> very good quality plastic and is easily cracked just due to the
> temperatures and normal use. I don't really want to be replacing them
> every few months! Thought about the plain dry gloves, with their own
> wrist seal, but they seem to be a bit of a pain to get on.
> If anyone knows of dry gloves with a good quality connecting system
> that will attach easily and ideally not cheap crappy plastic that
> cracks in the cold they would be a good consideration for me.

I use the RoLock system and I'm really happy with it.

Mind you the first couple of times you use it, it still a bid hard to
connect the rings to each other. But after that time, the O-ring sits
better in its fitting and you have no problem anymore.

The advantage of this system is that you mount it on your wrist seal (you
don't have to cut it). Thus, if your glove is flooded no water comes into
your drysuit.

--
Michael Wolf
------------

Cthulhu for President! Why settle for the lesser evil?

remove stopspam to reply

matts wrote:

> What you describe sounds like a faff to me and the few times I tried it it
> felt like a faff. I guess I must have done close to a thousand delayed
> deployments using the exhaust and I like to think my technique is pretty
> slick these days. Maybe if my manual technique was not up to scratch or I
> had tried 1000 bottle deployments I might think differently. ATEOD for me
> the DSMBi provided no significant benefits and a few drawbacks.

No-one's asking to use one though are they though? Who cares,
if it works for you. Just don't try and convince the rest of
us to return to the stone age though.

- Keith

Danger of dropping negative DSMBi. I attach my DSMB to my Stab with a small
velcro link - only about half an inch of velcro is attached within a
v-shaped fold of velcro. This is enough to stop the device plummetting to
the deep if it drops but is not strong enough to pull you up if the reel
jams - a sharp tug and it disconnects.

Allan

Oh dear I guess you have not been keeping up Keith.

KS> No-one's asking to use one though are they though?

Well no, I was being asked why I do not use one, despite owning one. I
originally declined to provide any reason on the grounds somone here would
decide "I am obviously inadequate for not liking them"

KS> Who cares, if it works for you.

I do.

KS> Just don't try and convince the rest
KS> of us to return to the stone age though.

I am not trying to convince anyone of anything. In fact I have been at
pains to balance the reasons I choose not to use a DSMBi with a reason why
somone else might choose to use one.

If you are concerned that "Maybe if my manual technique was not up to
scratch or I had tried 1000 bottle deployments I might think differently."
was a criticism of people using the DSMBi let me attempt to be clearer.
Anyone faced with learning to use a DSMB that finds a DSMBi helps them, then
fine. There is absolutely no point in struggling with a technique you do
not like / are not confident with (IMVHO). On the other hand having
deployed a DSMB manually around 1000 times changing technique now would
require adjustment which I see no point in making. I am sorry if I confused
you, I thought my meaning was plain.

If you have similarly deployed a delayed 1000 or more times and happen to
think a DSMBi is the dogs then that is fine too. I would of course hope
that we could respect each others assessments without having to enter into a
public pissing contest.

Which brings us neatly back to the choice of language some people choose to
use debateing on this group. The way that people get treated if they happen
to disagree with the group concencus is often apalling. If you are only
interested in people ageeing with you then maybe you should propose the name
is changed to DIukRS ;-(

Regards
MattS

> KS> No-one's asking to use one though are they though?
>
> Well no, I was being asked why I do not use one, despite owning one. I
> originally declined to provide any reason on the grounds somone here would
> decide "I am obviously inadequate for not liking them"

Oops, that would have been me :o\
Was just curious with a lot of people advocating them what the possible
negative points about them were too, before I think about hacking holes in
mine (which I think i'm shying away from - wimp! :O) ), or spending £80 on
a DSMBi.

I think for now from all the comments, both good and bad, i'll go with the
trying to keep my hands warm and working and stick with a normal DSMB for a
while, trying the exhaust bubbles method (which failed miserably in the
pool, although i didn't have too long to practice last night). Next time
i'm in Stoney (which if i'm (un)lucky will be tomorrow) i'll just take every
DSMB I can find down with me and do 5 in a row... could be interesting! :O|

David

matts wrote:

> If you are concerned that "Maybe if my manual technique was not up to
> scratch or I had tried 1000 bottle deployments I might think differently."
> was a criticism of people using the DSMBi let me attempt to be clearer.
> Anyone faced with learning to use a DSMB that finds a DSMBi helps them, then
> fine. There is absolutely no point in struggling with a technique you do
> not like / are not confident with (IMVHO). On the other hand having
> deployed a DSMB manually around 1000 times changing technique now would
> require adjustment which I see no point in making. I am sorry if I confused
> you, I thought my meaning was plain.

No, I understood you although the numbers puzzle me a bit:

+ Tropophobia. I have made around 500 deployments with a standard DSMB.
I am confident and happy with the technique, it works why change?

I'm still willing to bet that a diver with the same amount of experience
in using a self-inflatable DSMB can send a blob up faster than someone
faffing around trying to blow into a blob. Hmm, something to liven up
the next dive - a timed blob deployment challenge!

- Keith

KS> No, I understood you although the numbers puzzle me a bit:

KS> + Tropophobia. I have made around 500 deployments with a standard
KS> DSMB. I am confident and happy with the technique, it works why change?

I have been diving since 1995 and do between 90 and 180 dives a year. I do
not use a delayed on absolutely every dive but then again during Winter I
help with instructing so on some dives I make more than one deployment. I
have definately made over 500 deployments and nearer 1000. I hope that
makes it clear.

KS> I'm still willing to bet that a diver with the same amount of
KS> experience in using a self-inflatable DSMB can send a blob up faster
KS> than someone faffing around trying to blow into a blob.

How fast do you need to be? Speed is about the last thing I think about
when deploying. It takes me 2 minutes on a bad day, which is all I need to
know for a dive plan.

KS> Hmm, something to liven up the next dive - a timed blob deployment
KS> challenge!

So it is a pissing contest your after

Amazing the pointless lengths people go to attempting to make this passtime
competitive. I am more than happy for you or anyone else to watch and
critique and I would welcome the chance of watching someone well practiced
with a DSMBi showing me how easy it is. I spend far too much time telling
people to slow it down to be interested in any sort of race. If it ended
with someone getting hurt we would all feel pretty stupid.

Regards
MattS

matts wrote:
> Keith S wrote;
> > I'm still willing to bet that a diver with the same amount of
> > experience in using a self-inflatable DSMB can send a blob up faster
> > than someone faffing around trying to blow into a blob.
>
> How fast do you need to be? Speed is about the last thing I think about
> when deploying. It takes me 2 minutes on a bad day...

Sometimes very fast. If you're at 60 or 70m and you need to send a bag up
now, spending a couple of minutes faffing around with your delayed in not
a good idea. My normal time from reaching round to unclip my reel and the
bag hitting the surface from that sort of depth is usually 10 seconds or
less using a self inflating DSMB pre-attached to my reel. With a "normal"
blob we're probably talking 30 to 40 seconds. At depth that can be a long
time.

Al.

matts wrote:

> How fast do you need to be? Speed is about the last thing I think about
> when deploying. It takes me 2 minutes on a bad day, which is all I need to
> know for a dive plan.

When the s**t hits the fan at depth, that's when it needs to be fast
and reliable.

> Amazing the pointless lengths people go to attempting to make this passtime
> competitive.

I don't see anything pointless or competitive about being able to
deploy a DSMB quickly and efficiently.

- Keith